Roller-bearing



(VNo Model.)

P. MOSSBERG.

ROLLER BEARING.

No. 560,521. Patented May 19, 1896.

WITNEEEEE.. Ihn/ERJTIJFRY m mw @WR/m. Q/M//ZXQW f f NITED STATES PATENT@Erica FRANK MOSSBERG, OF ATTLEBOROUGH, MASSACHUSETTS.

ROLLER-BEARING.

SPECIFICATION forming part of Letters Patent No. 560,521, dated May 19,1896.

Application filed July 16, 1895. Serial N0. 556,203. (No model.)

To @Zt whom. it may concern:

Be it known that I, FRANK MOSSBERG, of Attleborough, in the county ofBristol and State of Massachusetts, have invented certain new and usefulImprovements in Roller-Bearings; and I do hereby declare that Athefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form a part of this specification.

This invention relates to improvements in that class ofantifriction-bearings known as roller-beari-n gs.

The object of this invention is to produce a bearing in which thejournaled portion of the shaft will be provided with antifrictionbearingsurfaces extending nearly the full length of said journaled portion.

The further object of this invention is to produce a roller-bearing inwhich the torsional strain exerted on the antifrictional rolls and thecage containing,` these rolls by the revolution of the shaft journaledtherein will be reduced to a minimum.

In the drawings, Figure 1 represents a horizontal sectional view of theimproved rollerbearing and journal, a part of a shaft being shown inelevation as journaled therein. Fig. 2 is a section of the cagelengthwise through its center after being bored for the rolls. Fig. 3shows the ring of wire separate. Fig. 4. is a right-hand end view of thecage, showing the way of holding the rolls in the cage. Fig. 5 shows theflange made on the inside of the cage instead of the outside. Fig. 6 isone of the rolls.

In carrying out my invention I take a sleeve or tube A, made of suitablemetal and of the proper diameter, the sides of the same being ofconsiderable thickness, and starting at one end I bore it from end toend of a uniform size a little larger in diameter than the journal it isto be used upon. The outer surface of the sleeve is then turned offuntil the sides are of a less thickness than the diameter of the roll tobe held in it, except that at the end fromvwhich the holes u were boreda stren gth-V ening-ange r isv left, which extends around the sleeve. Aseries of holes 'u of the proper size for the rolls CL to turn in easilyare thenv drilled in the sleeve nearly to the bottom, leaving only ashort portion 'n to hold the bars together at that end, as the drillcuts through on both the inside and outside of the sleeve except at theend where the flange o is, which flange holds the barsy together at thatend. The rolls a a, Fig. 6, are then prepared from round bars of metalof a size to easily fit and rotate within the bearings formed by theconcaved surfaces of the bars h, the ends of these rolls being roundedor slightly cone-shaped to avoid friction with the ends of the cage. Thebearing holes or slots c in the cage being filled with a like number ofrolls, a groove s is then made in the end of the bars inside the flangeand a wire ring g sprung in, as shown in Fig. 3, to keep the rolls inwhen handled. The bearing is now complete and can be shipped withoutdanger of the rolls falling out. When it is to be placed in position ina journal-box, I cut away a portion of the inner surface of said box atthe end to admit the entrance therein of the fiange lr. lVhen inoperation, t-hose portions of the rolls extending beyond the outersurface of the cage will bear against the inner surface of thejournal-box,'while the portions of the rolls extending beyond the innersurface of said cage will bear against the journaled portion of theshaft, the end of which is generally surrounded with the collar H,secured in place on the shaft by the set-screw s.

It will be readily seen that the twisting or torsional strain either onthe cage or on the rolls is entirely prevented by this device, the cagebeing free to revolve and the rolls to rotate in their bearings, inwhich they are held perfectly parallel to each other and to the line ofthe shaft, it being impossible for one end of a roll to move faster thanthe other end, which is usual in roller-bearings.

The fiange can be made on the inside, as in Fig. 5, in cases where it isbetter to make the rabbet for it in the axle or shaft instead of the hubof the Wheel or box.

Having thus described my improvement, I claim as my invention and desireto secure by Letters Patent- A cage for a roller-bearing consisting of aseries of bars made integral or fast at one end with a collar, to holdthe rolls, said bers having L groove made in the faces of the ends ofthe bers Where the spaces are left open for the insertion of the rolls,@Wire ring iitted to spring into said groove and hold the rolls in, 1owith rolls to occupy the spaces between said bars, substantially asdescribed.

FRANK MOSSBERG. lVitnesses:

FRANK W. CARPENTER, EDWIN F. LEAGH.

